Sight-feed oiler.



F. OTTESEN.

SIGHT FEED OILER.

APPLICATION FILED APR. 1, 1915.

1,172,039. Patented Feb. 15,1916.

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WITNESSES INVENTOR UNITED TATES PATENT oFnroE.

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Specification of Letters Patent.

SIGHT-FEED oILnn.

f Patented Feb. 15, 1916.

Application filed April 1, 1915. SeriaLNo. 18,477.

To all whom it may concern:

Be it known that I, FREDRIK OTTESEN, a subject of the King of \Norway, and resident of Pittsburgh, in the county of Allegheny and State of Pennsylvania, have invented certain new and useful Improvements in Sight-Feed Oilers, of which the following is a specification.

The transparencies through which the operation of sight feed oilers may be observed frequently become so, clouded by vapor emanating from the oil as; to seriously 11npair if not entirely obscure the view. TlllS tendency 'is particularly marked in closed lubricating systems wherein the oil is repeatedly reused, suificient water vapor and volatile constituents of the :oil being frequently carried forward from the filter in sufficient amount to causethe abovenoted objectionable condition. Ihave found that this vapor deposit can be entirely avoided by having the sight feed-chamber open to is a front elevation, partly in section, of a sight feed oiler constructed in accordance with the invention. Fig. 2 is a vertical cross-section taken on line 22 of Fig. 1.

Referring to the drawings, the casing of the improved lubricator is formed with an oil-receiving chamber 2 and a delivering chamber 3, the arrangement being preferably such that these chambers are embodied in an integral structure. The oil feeds from chamber 2 through a nozzle 4: into the upper portion of chamber 3, and the drip or ow is controlled by needle valve 5 which is adjustable through stufiing box 6 on the upper side of chamber 2. In large power installa tions a number of sight feed oilers may be supplied from the same source, and to meet this condition opposite ends of chamber 2 are adapted to connect with the supply line 7, as shown. The bottom of chamber 8 may be provided with any suitable outlet fitting with the partto be lubricated.

or nozzle 8 for properly connecting the oiler The opposite side walls of chamber 3 are of open cylindrical form as shown at 9, with each threaded internally and provided with the outwardly facing seat-forming shoulder 10. A piece of glass or other transparency 11 1s fitted to each seat and is held in place by a gland .12, the flange-like outer edge of the latter being of angular form to receive awrench. Washers 13 of suitable packing materlal at the inner and outer sides of theglass provide an effective seal.

The sight feed or delivering chamber 3 is suitably vented for the admission of atmospherlc air, the presence of which forestalls the accumulation of sight-obstructing water and 011 vapors on glasses 11.. ,Venting for the accomplishment of this object may be variously embodied, although the arrange-,

ment is preferably such as to provide at least circulation. In the adaptation .here shown, the clOSedrim-like wall 14: of chamber 3 is formed w1th the inwardly diverging'ports 15 whlch ordinarily remain open and unobstructed and provide for the admission and circulation of air in amount suflicient to forestall vapor deposit and maintain the glasses transparent at all times. As it is deslred under certain conditions to feed the two vents at separated points to stimulate I oil under pressure, provision is had for 0108- f ing ports 15 which in the present adaptation consists of the screw valve 16 which has its threaded stem adjustable in the threaded socket 17 located intermediate the air ports and with the valve head of sufficient area to close the ports for the pressure feed operation. By having the ports converge outwardly they are within reach of the single valve and at the same time their inner endsare sufliciently separated to sustain'the desired circulation. For the normal opera tion, the valve simply remains open as in the adjustment shown in Fig. 1.

The advantages of the invention will be readily apparent to those skilled in the art. By maintaining the sight feed glasses constantly clear, much inconvenience is avoided,

particularly where a number of oilers are under constant observation, any clogging tendency being instantly discernible. If the transparencies are broken they may be replaced without interfering with the operation, a facility not possessed by sight feed oilers now commonly in use, it being necessary to shut oil the oiler and take it apart to replace a broken glass. The chambered frame of the oiler is of simple and compact form, and may be readily applied to any sight feed oiling system.

I claim:

1. A sight feed oiler having a visible passageway through which w oil is adapted to. flow, and means foraflording a circulation of air within the passageway, for the purpose described.

2. A sight feed oiler having a glass-inclosed passageway closed to the atmosphere 4 save for a plurality of vents for aflording circulation of air through the passageway.-

3. A sight feed oiler having a glass-inclosed passageway closed to the atmosphere save for a plurality of vents for aflording circulation of air therethrough for the pure pose described, and vents-closing means.

4. In a sight feed oiler, the combination of a casing having receiving and delivering chambers in ported communication, a valvecontrolling such communication, the receiving chamber being provided with manifold connections whereby oil may pass through.

said chamber'whencommunication with the delivering chamber is closed, the delivering chamber having a transparency through which the flow of oil may be observed.

5. 'A' sight feed oiler having a chamber provided with a plurality of vents for affording circulation of air through the chamber, and a transparency for the chamher through which the flow of oil may be observed. I 6. A sight feed oiler' having a' chamber through which oil is fed from asource of supply, the chamber being vented .for the admission of atmospheric air, valve means for controlling the passage of air, and a transparency for the chamber through which the flow of oil may be observed.

7. A sight feed oiler having a chamber through which oil is fed from a source of supply, a wall of the chamber formed with. a vent for the admission of atmospheric air,

a valve for closing the vent, and a transparenc for the chamber through which the flow 0 oil may be observed. p

8. Asight feed ;oiler having a chamber through which oil is fed from a source of supply, a wall of the chamber formed. with a separated vents for the admission of atmosheric air to different portions of the chamer, a controlling valve common tothe vents,

and a transparency for the chamber through which the flow of oil may be observed.

10. Asight feed oiler having a chamber; v

through which oil is fed from a source; of

supply, a wall of the chamber formed with two separated vents for the admission of'atmospheric airand with an. external screw-' threaded socket locatedbetween the vents, a valve common to the twoivents, the valve having a threaded stem adapted to enter said socket, and a transparency for the chamber through which the flow of oil may i be observed. a

11. In a'sight feed oiler, the combination of a casing having receiving and delivering chambers in ported communicatlon, a valve controllingsuchcommunication, the delivering chamber having sight openings in opposite walls thereof with transparencies clos- .85 z a circulation of air through the delivering;

ing said openings, and means for afi'ording chamber.

In testimony whereof I aflix my signature in presence of two witnesses.

EREDRIIC OTTESEN.

Witnesses:

J. M. Nnsnrr, ELLA McCoNNnLL. 

